Please Notes: 1.App: CUBOT band 2. IP65 life waterproof, suggest that not for shower and swimming 3.Be compatible for Android (os 4.3 or above and bluetooth must be 4.0 or above); for iphone (ios 8.0 or above and bluetooth must be 4.0 or above) 4.Android phone has CALL/SMS/QQ/Wechat reminder, iOS phone does not have this function Features: 1. Alarm Clock Don't be afraid that your alarm would wake up others because this vibration function just wake you up 2. Sedentary Reminder This wristband will remind users to take rest to to keep fit according to your working time 3. Notification When you receive message from Facebook etc., the bracelet will vibrate to remind you (Do not support iOS) 4. Standard Time and Military Time, Metric Unit and Imperial Unit You can choose the time format and unit as you like 5. Anti-lost The Bracelet will remind you when your phone is out of the range of bluetooth 6.Find band You can use your app to find your band, the smart bracelet will vibrate to remind you Specifucation: Screen: OLED Screen Size: 0.88 Inch Weight:0.8oz (22g) Waterproof: IP65 Standby Time: 15 days Charging Time: 30 minutes Wristband Material: TPU + PC Battery: 80mAh Li-polymer battery APP Language: English, Chinese, Germany, French, Italian, Spanish, Russian Package Contents: 1 x Smart Bracelet 1 x Charging Cable 1 x User Manual